mediate vs mediation

mediate is not a noun while mediation is a noun.

Word	Noun	Adjective	Verb	Adverb
mediate	No	Yes	Yes	No
mediation	Yes	No	No	No

mediate (noun)	mediation (noun)
	the act of intervening for the purpose of bringing about a settlement
	a negotiation to resolve differences that is conducted by some impartial party

mediate (adjective)	mediation (adjective)
acting through or dependent on an intervening agency
being neither at the beginning nor at the end in a series

mediate (verb)	mediation (verb)
act between parties with a view to reconciling differences
occupy an intermediate or middle position or form a connecting link or stage between two others